Transcriptomic profiling and genetic analyses reveal novel key regulators of cellulase and xylanase gene expression in Penicillium oxalicum.

We have detected and identified three key new regulatory genes, PoxCxrA, PoxCxrB, and PoxNsdD, that directly and indirectly regulate the expression of cellulase and xylanase genes in P. oxalicum. This study provides novel insights into the regulatory mechanisms of fungal cellulase and xylanase gene expression.